Gate-operating device.



, F. L. OHLER. GATE OPERATING DEVICE. APPLICATION FILED MAR. 24, 1915 Patent-ed Apr. 25, 1916.

2 SHEETSSHEET 1.

F. L. OHLER. GATE OPERATING DEVICE.

APPLICAHON FiLED MAR; 24. ms.

1, lSQEQUi Patented Aim 25, 1916.

2 SHEETS-SHEET 2- new and useful Gate-Operating elements for rendering nections therefor;

trol shown in. Fig. 5; Fig.

40 branch 11 passing over 45 theworm' wheel. 18

UNITED OFFICE.

FRANK L. OHLER, or TOLEDO, 01110, ssrea a mnerrron amva'ron' Ann MACHINE COMPANY, or romaine; Jori'ro', n oeiirona'rron or 01110.

oa'rn-ornnmfme DEVICE.

To all whom it may concern:

Be it known that I, FRANK L. OHLER, of Toledo, Lucas county, Ohio, a citizen of the -United States of America, have invented which the following is a specification.

This inventlon relates to control mechanlsm and the actuating connections therefor.

This invention has utility when embodied 10 in automatic mechanism for controlling and actuating gates in connection with elevators.

Referring to the drawings: Figure 1 isa fragmentary perspective view of an embodiment of the invention in connection with 15 an elevator car, elevator well having openings, and the gatesfor the openings; Fig. 2

is ja fragmentary erspective view show ng a the car holding t e gate operating mecha- .Fig. 3 is a detail of the gate actuating means-effective; Fig.4 is asection on the line IVeIV, Fig. 3, looking in the direction of the arrowyFig. 5.is a plan view of the gate operating nism for gate opening;

Fig. 6 is a fragmentary side elevation of features of the motor con- 7 is a .view on the line VII-VILFig, 5, looking in the direction-of the arrow; and Fig] 8 is a wiring diagram of the control connections.

In the'elevator shaft or well l is disposed the car or elevator 2 movable to various openings 3 or floor levels. Carried by the car 2 is a cam or with the tooth 8 fast with the pulley pulley 10" riding in the bight or flexible guide pulleys 12, 13, to a gate 14 for an opening 3. The branches or bights .11 are connected to the flexible actuating means or cable 15 extending ,to the drum driven by the worm 19 from the electric motor 20. Cable 21 passing over the guide pulley 22 to the counterto neutralize the load 0 the actuating weight 23 serves the blocks 9 and one gate on 56 cable 15. "Gates upon different sides of the elevator well 1, I pointsmay/ble controlled by this same motor or gates at other remote -or drivingrgmeans 20, say byline 24.

ConYeniHtlylocated in thecar 2 s the Specification of Letters Patent.

Devices, of

motor and control c-onholding device 4, which the supply wire'38, may when the car 2 is'at'a floor level, engages a roller 5 on the pivoted arm 6 to throw the dog 7 into engagementblock 9 carrying the" therflotor 20 to operate.

16 on the shaft 17 having switch for the [the car 2 at a Patented Apr. 25, 1916..

Application filed March 24, 1915. Serial no. 16,533. a

switch 25 connected by-the line 26 to the supply wire 27 of athree phase alternating current electric circuit. With this switch 25 thrown for bringing a lifted gate to down or closed position, the switch closes c rcuit from the line 26 through the line 28. co l 29, line '30 to terminal or contact '31 traveling on the. section 32'of the contact plate. The other contact plate connections are now considered. Electric current is conducted' through the contact plate from the section 33, contact; 34, line 35, coil 36 to the supply wire 37, being the second wire of the three phase alternating current electric circuit. The third wire 38 'of the alternating current electric circuit is connected by the l1ne39 contact 40 to section 41. of the 'contact plate to complete electrical connection through the section 32 and contact .31

duringthe earlier-travel of the plate toward gate closing position, and the contact 34 during the later travel of the gate.

The coil 36 when energized serves to close the switch .42 thereby connecting fup the lines 43, 44, 45, as the power circuit to the I, v

motor for'actuating the car 2. Accordingly power can be supplied for actuating the car 2'only when the gates have been thrown for closed position by the switch 25 which in the travel of the plate to close a circuit through the contacts 33, 34, allows current.

to flow through the coilf36. 'The coil 29 closes the'switch 46 when energized, sothat have circuit closed 47, 48, through the lines 49,

.fromthe line and fromsupply w re 50 to the motor'20;

'37, by lines 51,- 52,.through thelines 53,54,

as second. lead to the motor 20, the third wire 55 therefrom extending to-thesupply wire 27 The coil 56 between the Ieadwires 54, 55, may release the brake forfpermitting The-wii ing diagram, 8, shows the eontfotconnection's nposition for thegate fully down, passed OK the contact platesection 32, the

and as the terminal 31 has coil 29 is dee'nergized,'while the contact'34 f having moved upon con-tact" plate section i 33, the coil 36 is energized toclose-the .10 5 be shifted to closefcircuit cuit through the plate sections, 61. 41,. and contact 40. The coil 58 so energized raises the switch (12, and through the lever 63 acts to insure that the switch 16 is open. The switch (32 closes electric circuit from the lines 37, 51, (H, through the lines 65, 50 to the motor 20; from the lines 38, 1-7, 66, through the lines 67, 51, for actuating the motor 30 in a reverse direction. In this operation of the motor .20, the worm 19,

' actin through the worm wheel' lS drives the shaft 17, carrying the drum 16. The cable 15 is connected to the drum 16 to han radiallywthercof at starting position, so that the speed o travel of the gate to be lifted shall be lowest near its closed position.

winding the cable 15 in lifting thegate,

has thereon a threaded portion (58 the effective. extent of which "is determined by twoadjustable clamp nuts 69, 7 0 (Fig. 6),

1 each having an inwardly projecting big 71.

Mounted on this threaded portion 68 is the loose nut or segmental gear 72 havin 73, 7 4, disposed to abut the lugs 71.

v lugs Eoacting with the gear segment 72 is the segment,

75 (Fig. 7), having the flexible or spring arm 76 tending normally to maintain the gate isreturnedto closed position.

contact plate 32, 41, 61, 33, fast therewith in a medial position, and through the meshing relation-with the nut 72, permit this itlt 79. to travel along the threaded ortion (1 during the rotation of the shaft 1 Say the lug 71 will move away from the lug 72, thereby allowing the spring 76 to act to bring the contact plate and segment 7 5 to the central position (Fig. 7). The circuit through the coil 36 is broken and the power lines cut off from the main elevator motor so thefelevator may not be started until the When the rotations of the shaft 17 have just about completed opening the gate of the hold block 9, and the other blocks 9 are sliding u'pward'on the guide 77, the lug 71 contacts'the lug 71 to effect rocking of the contact plate to be free of thecontact 60, there by leaving only contacts 31, 40 on the contact plate 32, 41, 61, 33. This shifting of the contact plate away from contact 60 deenergizes the coil 58, thus opening the switch ($2 to :uitomatically stop the motor 20, notwithstanding the switch 25 has been given no attention. The only way left to throw theswitch 25 is for bringing the gate-down, and this will effect the \CUUIIPCUOH through the switch .115 reversing the motor :20 for such driving action. The device in its inter- "elation is so safety checked as to preclude doing the wrong thing. ()pcning switch .25 will stop a traveling gate let atoncc.

What is claimed and it is desired to se: cure by Letters Patent is: p

l. A traveling car. a cam carried by the car, gate actuating means provided with connections to the gate ii'idependently of the position of the car, and means actuated by the cam on the car to rcnderthe actuating means effective to actuate the gate by co- :icting with the connection intermediate the gate and actuating means.

2. A traveling car, a cam carried by the car, a plurality of gates, actuating means provided with connection to the gates independently of the position of the car, and a plurality of means actuable by the cam on the car to render the actuating means effective by coacting with the connection interinediatethe gate and actuating means.

3. A trave ing car, a cam carried by the 'car, a gate, flexible actuating means provided with connection to the gate independently of the position of the car, and means actuated by the cam on the car to render the actuating means effective to actuate the gate by coacting with the connection intermediate the gate and actuating means.

1. A traveling car, a cam carried by the car, a gate, actuating means operable independently of car travel including a bight connected to the gate, and means actuated by said cam to engage the bight. i

A traveling car, a cam carried by the car, a gate,actnating means operable independently of car travel including a bight connected to the gate, a block in the bight, and means actuated by the cam on the car to engage the block.

6. A traveling car, a cam carried by the car, a gate,'actuating means operable independently of car travel including a bight connected to the gate, a pulley block in the bight, and a dog actuated by the camon the car to engage the block.

7. A gate operating device including first actuating means for a gate provided with normally uninterrupted connection therewith, second gnide means intermediate the extent of the connection between the-gate and the actuating means for rendering the actuating means elfcctivc, and a holding device to. engage the second means against relative travel.

S. A gate operatingdevice including first actuating means for a. gate providedwith connection thereto. second "guide meansintcrn'icdiatc the extent of the connection between the gate and actuating means for rendering the actuating means effective, a holding device to engage the second means against travel, and a movable member for actuating the device.

9. A gate operating device including actuating means for a gate provided with 'connection thereto, a dog intermediate the extent of the connection between the gate and actuating means for rendering the actuating means effective, and a cam holding the dog against disengagement. 1

10. A gate operating device including a cable liavlng a bight, a pulley block in the bight, a dog for locking the blockagainst.

relative travel, and a cam 11. An operating 'device ferwjiffiiriffiiy'of gates including an actuating cable operable independently of car travel connected to the for throwing the gates, said cable .havingbights therein,

blocks in the bights, and means "for engag ing a block to render the cable effective for actuating a .gate;

12. An operating device for a plurality of gates including a plurality of bights, an operating cable to which said bights are connected, a gate connected to each bight, a

Ifor actuating the line 'to efl'ect shifting of the gate. V 14. An electric motor, a plurality of gates provided with connecting means to the motor, and means intermediate the extent of the connecting means between a gate and the motor for rendering operative the connection of suchg'ate to the motor to effect movement of such gate by. the motor.

In testimony whereof I aflix my signaone in the presence of two witnesses.

I FRANK L. OHLER.

Witnesses:

v GEO. E. KI K,

C. H. ,RAUOH. 

